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To test the effects of eating on learning, Professor Lee permits her morning class to bring snacks to class but forbids her afternoon class from bringing snacks. To measure performance, she counts the number of "intelligent questions" asked by students in each class, and reports getting more such questions in the morning class. What are two serious flaws in this experiment?
Units of Production
A method of depreciation that calculates an asset's expense based on its usage or output, rather than a standard time period.
Time
Time is a dimension in which events occur in sequence from the past through the present to the future, and it is a measure of durations and intervals.
Dollars
The unit of currency used in the United States and other countries, often symbolized by $.
Internal Rewards
Personal satisfaction and intrinsic motivations that come from within an individual, rather than external rewards.
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